Unit for track-belts



E. GRUBER UNIT FOR IRAGK BELTS.

APPLlCATION HLE'D MAR. 31. 19:9.

1,359,499. Patented Nov. 23, 1920.,

2 SHEETS-SHEET I.

E..GRUBER.

um FOR TRACK sens. MILICAUUN FILED WAR. 3l| 19H].

1,359,499. 1mm Nov. 23, 1920..

2 SHEETS-SHEET 2.

I This invention is an improvement upon E TA "PATENT j OFFICE.

EDWARD cinema, or CLEVELAND, OHIO, assionon ro THE CLEVELAND was COMPANY, or EUCLID, 01110, A ooaronamou or omo.

-UNiT FOR TRACK-BELTS,

To all whom concern/i Be it knownthat I, EowAnn GRU'BER,

citizen of the United States residing at- Cleveland, in the county ofCuyahoga' and State of Ohio, haveinvented a certain new' and useful Improvement in Units for Track- Belts, of which the following is a full, clear,

and exact description.

the track unitor linkwhich is shown and described in the application of E. H. Savage,

Serial No; 269,561, filed Jan. 4, 1919, theprincipaL object being to increase the strength and durability of the link sides of said unit, andto diminish the chance that the horizontal flangesf'at the upper edges of I said link sides, which serve as hearing surfaces or' rail to s for the truck wheels shall b eso mutilate anddeformed in use that they can not satisfactorily serve" the purpose for which they are provided. w s

The invention consists inthe combination, of parts shown in the drawing and hereinafterdescribed, as definitely, pointed out intheappended claims. i

'In the drawing, Figure 1 is a plan View of a track unit embodying the invention; Fig. 2 is a sectional plan'viewa-Fig. 3 is a longitudinal central vertical section, and Fig. {l is'a rear end iew of said unit. Fig.

5 is a rear viewof a modified construction;

-bers B and 0, all made from metalsheets nallyextended rails 13.

\bentinto ehe'forms shown and secured to gether. The middle member A has the form of a substantially square U, and is so formed by bending up the sides of the metal plate, thereby producing the fiat bottom or shoe portion 12, and the two vertical longitudi The two side members B and Care alike except that they are rights and lofts. Each has (a vertical longitudinally extended rall 21; and may have a horizontal shoe portion 22, of which the rail is an integral part, as shown in Fig. 4; or it may not as shown in Figs. 5 to These rails are so shaped thatv when the three pieces are laced side by side the rails 13 and 21 will ein contact near the front end of the unit, and near the rear.

which they are ofi'set.

placed together as stated, the offset front specification of Letters Patent. Patented Nov. 23, 1920. Application filed March 31, 1919. Serial No. 258,265.

end of the'u'nit; but the parts ofthe rails between said contacting front and rear ends are spaced apart: This results from the fact that the rails 13 near their rear ends are olfs'et'apart; and the rails 21 near-their front endsaa're ofl'set toward one another. The offset portions are, however, parallel with each other andwith the rails from 'When the rails are ends ofthe milsei eng'a e with the outer faces of the front ends 0 therails 13 and are connected with them by spot welding? rivets and the like. The offset rear ends 0 the rails 13 will likewise engage the inner faces of the rails 21, and these engaging ing, rivets or thelike.

parts are connected together by spot weld- .The offset parts of Said rails at the front and rear'ends of the unit, together with the parts of the rails which contact with and are secured to said offset parts constitute double thick ears. These cars at the rear ends of the unit are farther apart than those at the front end of the unit: and therefore the ears at the frontend'of the unit may go between the ears at the rear end of the adjacent unit;

and the overlapping ears may be pivoted 'togetherby any suitable or well known means.

The part of one rail which is spaced away from the associated rail is formed with a turned over horizontal flange 24 along its upper edge which flange extends over and rests upon a part of thecompanion rail.

Preferablythe flanges 24 are on and parts of the rail 21; and preferably also the rails 13 have each a recess 16 out out of its upper edge into which a flange 24 is fitted, so that the upper surface of the said flange is flush with the upper edge of the rail 13. These -flanges form stron well braced, broadsur- E wheels to ride on, a l

faces for the trac they are so constructed and supported that there is practically no chance that they will become deformed by use to an extent such as will render theminefiicint for the purpose for which they are provided.

In the construction shown a shoe 30 is provided. This is a flat metal plate whose side edges are coincident withthe side edges of the shoe portions of the members B and G, and these shoe portions of said members. rest upon the shoe as does the middle portion of the member A. The shoe is secured to these parts by spot welding, bolts, rivets or the like.

The front edge of this attached shoe may be turned down to form the ground engaging rib or grouser 31.

In the modified construction shown in Figs. 5 to T be members 15 and C have no shoe portirs, but are in most other respects substantially like the said members as shown in Figs. 1 to 4 inclusive. The horizontal flanges 2% are, however, formed on the upper edges of the rails 13; and these flanges rest only on the top of the offsetting web 25 of the rail 22.

As shown in Figs. 5 to T, the shoe is only connected with the middle member A.

Having described my invention, 1 claim:

1. A track belt unit comprising three metal members arranged side by side and connected together. viz., a middle member having along its side edges vertical longitudinally extended side rails, and two side members each having a vertical longitudinally extended rail which is Secured to a rail of the middle member, the rails which are so secured together being in contact at their front and rear ends and being spaced apart between said contacting ends, the upper edge of one of said spaced apart rails being formed with a horizontal flange which overlies and engages a part of the upper edge of the associated .rail.

2. A track belt unit comprising three metal members which are arranged side by side and are connected together, viz., a middle member having along its sides vertical longitudinally extended rails which at their rear ends areoffset apart', and two side members each having a vertical longitudinally extended rail which engages and is secured to the inner face of the offset part of a rail of the middle member,-the rails of said side members at their front end being oil'set toward one another,-said otlset parts being in engagement with the outer faces of the associated rails of themiddle member, the upper edge of one of the rails of each pair of con ected rails bein formed with a horizontal li ange which over ies and engages the upper edge of the associated rail.

3. A track belt unit comprising three metal members arranged side by side and connected together, viz., a middle member having along its side edges vertical longitudinally extended side rails, and two side members each having a vertical longitudinally extended rail which is secured to a rail of the middle member, the rails of which are so secured together being in contact at their front and rear ends and being spaced apart between said contacting ends, the upper edge of one of said spaced apart rails being formed with a horizontal flange which overlies and engages the upper ed e of the associated rail, and a shoe upon which said three members are secured, which shoe has at its front end an integral downwardly bent and transversely extended ground engaging rib.

In testimony whereof, I hereunto afiix my signature.

EDV ARD GRUBER. 

